[Freeswitch-users] SDP Renegotiation

[Brian West]

"I tried adding this line to vars.xml:  (<param
name="renegotiate-codec-on-reinvite" value="true”/>"

This would be because its not a variable, its a sofia profile param that
you would add to a profile thats in the sip_profiles directory.


On Tue, Jan 13, 2015 at 11:01 PM, Jon Lederman <jonlederman at gmail.com>
wrote:

> Hi,
>
> I am trying to get my client to work with Freeswitch in the following
> context to no avail.  If I initiate a video call, the video works fine.
> However, if I start an audio call and then try to add video later in the
> call, no video is received.  I tried adding this line to vars.xml:  (<param
> name="renegotiate-codec-on-reinvite" value="true”/>
> That, however, did not fix the problem.
>
> Any help would be greatly appreciated.  The SDP negotiation is indicated
> below.  Thanks in advance.
>
> I do see in fs_cli that FS has received a new SDP and is trying to
> renegotiate as follows:
>
> INITIAL SDP (AUDIO ONLY):
> v=0
> o=FreeSWITCH 1421171138 1421171140 IN IP4 146.148.54.28
> s=FreeSWITCH
> c=IN IP4 146.148.54.28
> t=0 0
> m=audio 25746 RTP/AVP 124 101
> a=rtpmap:124 opus/48000/2
> a=fmtp:124 useinbandfec=1
> a=rtpmap:101 telephone-event/8000
> a=fmtp:101 0-16
> a=silenceSupp:off - - - -
> a=ptime:20
> a=sendrecv
> m=video 26852 RTP/AVP 98
> a=rtpmap:98 VP8/90000
>
> NEW SDP WITH ATTEMPT TO ADD VIDEO TO EXISTING SESSIOn:
> 2015-01-14 00:55:29.401667 [DEBUG] sofia.c:5828 Remote SDP:
> v=0
> o=1000 3968 2153 IN IP4 10.1.10.10
> s=Talk
> c=IN IP4 10.1.10.10
> b=AS:380
> t=0 0
> a=rtcp-xr:rcvr-rtt=all:10000 stat-summary=loss,dup,jitt,TTL voip-metrics
> m=audio 53368 RTP/AVP 124 101
> a=rtpmap:124 opus/48000/2
> a=fmtp:124 useinbandfec=1; stereo=0; sprop-stereo=0
> a=rtpmap:101 telephone-event/8000
> a=fmtp:101 0-15
> m=video 9078 RTP/AVP 103
> a=rtpmap:103 VP8/90000
>
>
>
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-- 

*Brian West*
brian at freeswitch.org


*Twitter: @FreeSWITCH , @briankwest*
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